A literature professor decides to give a 15 question true- false quiz. If a student takes...
A literature professor decides to give a 15 question true- false quiz. If a student takes this quiz just by blind guessing, what the probability that he/she could get exactly 10 answers correctly?
Homework Answers
Please note nCx = n! / [(n-x)!*x!]
Binomial Probability = nCx * (p)x * (q)n-x, where n = number of trials and x is the number of successes.
Since there are only 2 options, P(Right) = 0.5 and P(Wrong) = 0.5
Therefore n = 15, p = 0.5, q = 1 – p = 0.5 .
P(X = 10) = 15C10 * (0.5)10 * (0.5)15-10 = 3003 * (0.5)15 = 0.0916
Add Answer to:
A literature professor decides to give a 15 question true- false
quiz. If a student takes...
A history professor decides to des to give a 15-question true-false quiz. She wants to choose...
A history professor decides to give a 15-question true-false quiz. She wants to choose the passing grade such that the probability of passing a student who guesses onevery question is less than 0.10. What score should be set as the lowest passing grade?
A student took a ten true-false question quiz on a statistic's class. Assuming the student is...
A student took a ten true-false question quiz on a statistic's class. Assuming the student is guessing on all the questions, what is the probability that this student answer at most 6 questions correctly?
A student takes an exam containing 18 true or false questions. If the student guesses, what...
A student takes an exam containing 18 true or false questions. If the student guesses, what is the probability that he will get exactly 15 questions right? Round your answer to four decimal places.
2. A professor gives a twenty question true/false quiz. The lowest passing quiz score is 12...
2. A professor gives a twenty question true/false quiz. The lowest passing quiz score is 12 correct out of 20. Suppose a student randomly and independently guesses on each quiz question, what is the probability that the student earns a passing grade? Round to 4 decimal places.
A student takes an exam containing 14 true or false questions. If the student guesses, what...
A student takes an exam containing 14 true or false questions. If the student guesses, what is the probability that he will get exactly 13 questions right? Round your answer to four decimal places.
A student takes an exam containing 11 11 true or false questions. If the student guesses,...
A student takes an exam containing 11 11 true or false questions. If the student guesses, what is the probability that he will get exactly 3 3 questions right? Round your answer to four decimal places.
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer....
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability that the student passes the quiz with a grade of at least 40% of the questions correct. (Round your answer to three decimal places.)
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer....
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability that the student passes the quiz with a grade of at least 60% of the questions correct. (Round your answer to three decimal places.)
A student takes a 10 question true-false quiz, but did not study and randomly guesses each...
A student takes a 10 question true-false quiz, but did not study and randomly guesses each answer. Let X be the number of questions answered correctly. a) The variable X is binomially distributed with n = and p = b) Find the mean of X. c) Find P(X = 10). Round your answer to 5 decimal places. d) Find P(X ≥ 7). Round your answer to 5 decimal places
A student takes an exam containing 18 true or false questions. If the student guesses, what...
A student takes an exam containing 18 true or false questions. If the student guesses, what is the probability that he will get less than 10 but more than 7 questions right? Round your answer to four decimal places.
2. A professor gives a twenty question true/false quiz. The lowest passing quiz score is 12 correct out of 20. Suppose a student randomly and independently guesses on each quiz question, what is the probability that the student earns a passing grade? Round to 4 decimal places.
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago